Mouthguard



FIG. 1 is a perspective view of a mouthguard showing our new design.

FIG. 2 is a front view of the mouthguard of FIG. 1.

FIG. 3 is a back view of the mouthguard of FIG. 1.

FIG. 4 is a right side view of the mouthguard of FIG. 1.

FIG. 5 is a left view of the mouthguard of FIG. 1.

FIG. 6 is a top view of the mouthguard of FIG. 1; and,

FIG. 7 is a bottom view of the mouthguard of FIG. 1.

The broken lines shown in the drawings represent portions of the mouthguard that form no part of the claimed design. 

CLAIM The ornamental design for a mouthguard, substantially as shown and described. 